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Báo cáo khoa học: Inactivation of tyrosine phenol-lyase by Pictet–Spengler reaction and alleviation by T15A mutation on intertwined N-terminal arm

Chia sẻ: Nguyen Thang | Ngày: | Loại File: PDF | Số trang:10

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Citrobacter freundiil-tyrosine phenol-lyase (TPL) was inactivated by a Pictet–Spengler reaction between the cofactor and a substrate, 3,4-dihyd-roxyphenyl-l-alanine (l-dopa), in proportion to an increase in the reaction temperature. Random mutagenesis of the tpl gene resulted in the genera-tion of a Thr15 to Ala mutant (T15A), which exhibited a two-fold improved activity towards l-DOPA as the substrate.

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Nội dung Text: Báo cáo khoa học: Inactivation of tyrosine phenol-lyase by Pictet–Spengler reaction and alleviation by T15A mutation on intertwined N-terminal arm

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